package com.atguigu.c_oop;

public class Test {
     int num = 111;

    public  void main(String[] args) {
        int num = 222;
        System.out.println("num = " + num);
        System.out.println("num = " + this.num);

        System.out.println("Math.PI = " + Math.PI);
    }
}
